<template>
  <div class="app-container">

<!--查询表单-->
<el-card class="operate-container" shadow="never">
  <el-form :inline="true" class="demo-form-inline">
  <el-form-item label="用户姓名">
    <el-input v-model="searchObj.username" placeholder="用户名" /> 
  </el-form-item>
  <el-form-item label="状态">
    <el-select v-model="searchObj.status" clearable placeholder="状态">
      <el-option value="1" label="潜水"/>
      <el-option value="0" label="活跃"/>
    </el-select>
  </el-form-item>
    <el-form-item label="邮箱">
    <el-input v-model="searchObj.email" placeholder="邮箱" /> 
  </el-form-item>

    <el-button type="primary" icon="el-icon-search" @click="fetchData()">查询</el-button>
    <el-button type="default" @click="resetData()">清空</el-button>
</el-form>
</el-card>

<!-- 工具按钮 -->
<el-card class="operate-container" shadow="never">
  <i class="el-icon-tickets" style="margin-top: 5px"></i>
  <span style="margin-top: 5px">数据列表</span>

  <el-button class="btn-add" @click="add()" style="margin-left: 10px;">添加</el-button>

  <el-button class="btn-add" @click="batchRemove()" >批量删除</el-button>
</el-card>


      <!-- 表格 -->
<el-table
  :data="list"
  border
  stripe
  @selection-change="handleSelectionChange">
  <el-table-column type="selection"/>
  <el-table-column
    label="#"
    width="50">
    <template slot-scope="scope">
      {{ (page - 1) * limit + scope.$index + 1 }}
    </template>
  </el-table-column>
  <el-table-column prop="username" label="名称" width="80" />


        <el-table-column label="头像" width="100%" >
                <template slot-scope="scope">
                    <el-image :src="scope.row.avatar" 
                    style="width: 100px; height: 100px"
                      class="avatar"
                      :fit="fit"></el-image>

                </template>
        </el-table-column>


  <el-table-column label="状态" width="90">
    <template slot-scope="scope">
      <el-tag v-if="scope.row.status === 1" type="success" size="mini">潜水</el-tag>
      <el-tag v-if="scope.row.status === 0" size="mini">活跃</el-tag>
    </template>
  </el-table-column>
  <el-table-column prop="email" label="邮箱" width="80" />
  <el-table-column label="操作" width="200" align="center">
    <template slot-scope="scope">
      <el-button type="text" size="mini" @click="removeById(scope.row.userId)">删除</el-button>
      <router-link :to="'/dfs/user/edit/'+scope.row.userId">
        <el-button type="text" size="mini">修改</el-button>
      </router-link>
    </template>
  </el-table-column>
</el-table>


  <!-- 分页组件 -->
  <el-pagination
    :current-page="page"
    :total="total"
    :page-size="limit"
    :page-sizes="[5, 10, 20, 30, 40, 50, 100]"
    style="padding: 30px 0; text-align: center;"
    layout="total, sizes, prev, pager, next, jumper"
    @size-change="changePageSize"
    @current-change="changeCurrentPage"
  />
  </div>
</template>
<script>
import teacherApi from '@/api/dfs/user'
export default {
// 定义数据模型
  data() {
    return {
      list: [], // 讲师列表
      total: 0, // 总记录数
      page: 1, // 页码
      limit: 10, // 每页记录数
      searchObj: {}, // 查询条件
      multipleSelection: []// 批量删除选中的记录列表
    }
  },
  // 页面渲染成功后获取数据
  created() {
    this.fetchData()
  },
  // 定义方法
  methods: {
    add(){
      this.$router.push({
      path: "/dfs/user/create" ,
      });
    },

// 批量删除
batchRemove() {
  if (this.multipleSelection.length === 0) {
    this.$message.warning('请选择要删除的记录！')
    return
  }
  this.$confirm('此操作将永久删除该记录, 是否继续?', '提示', {
    confirmButtonText: '确定',
    cancelButtonText: '取消',
    type: 'warning'
  }).then(() => {
    // 点击确定，远程调用ajax
    // 遍历selection，将id取出放入id列表
    var idList = []
    this.multipleSelection.forEach(item => {
      idList.push(item.userId)
    })
    // 调用api
    return teacherApi.batchRemove(idList)
  }).then((response) => {
    this.fetchData()
    this.$message.success(response.message)
  }).catch(error => {
    if (error === 'cancel') {
      this.$message.info('取消删除')
    }
  })
},
// 当多选选项发生变化的时候调用
handleSelectionChange(selection) {
  console.log(selection)
  this.multipleSelection = selection
},

    // 根据id删除数据
removeById(id) {
  this.$confirm('此操作将永久删除该记录, 是否继续?', '提示', {
    confirmButtonText: '确定',
    cancelButtonText: '取消',
    type: 'warning'
  }).then(() => {
    return teacherApi.removeById(id)
  }).then((response) => {
    this.fetchData()
    this.$message.success(response.message)
  })
},
        // 每页记录数改变，size：回调参数，表示当前选中的“每页条数”
    changePageSize(size) {
      this.limit = size
      this.fetchData()
    },

    // 改变页码，page：回调参数，表示当前选中的“页码”
    changeCurrentPage(page) {
      this.page = page
      this.fetchData()
    },

    // 重置表单
    resetData() {
      this.searchObj = {}
      this.fetchData()
    },
    fetchData() {
      // 调用api
      teacherApi.pageList(this.page, this.limit, this.searchObj).then(response => {
        debugger
        console.log(response)
        this.list = response.data.records
        this.total = response.data.total
      }).catch(err=>{
        this.$message.error(err.message); 
        console.log(err) ;
      })
    }
  }
}
</script>